摘要
将垂直流人工湿地与水平流人工湿地组成复合人工湿地系统,研究了此复合系统对化粪池出水的净化效果。结果表明,当水平流人工湿地的水力停留时间为3d天时,复合系统对COD、BOD5、TP的去除率分别达到73%、66%、87%,并通过垂直流湿地的硝化作用及水平流湿地的反硝化作用,复合系统对TN的去除率达到40%以上。
The vertical--flow and horizontal--flow beds were combined to hybrid constructed wetlands systems, and its purification efficiency for septic tank effluent was studied. The results showed that while the hydraulic retention time of horizontal-flow constructed wetlands was three days, the average removal rates of COD, BODs, TP were 73%, 66%, 87%, respectively. And the average removal rate of TN was over 40% through the nitrification in the vertical--flow constructed wetlands and the denitrification in the horizontal--flow constructed wetlands.
出处
《环境保护科学》
CAS
2009年第2期52-54,69,共4页
Environmental Protection Science
关键词
垂直流人工湿地
水平流人工湿地
复合系统
净化效果
Vertical-- Flow Constructed Wetlands Horizontal-- Flow Constructed Wetlands Hybrid Constructed Wetlands Purification Efficiency
作者简介
刘万杨（1959-），男，辽宁丹东人，高级工程师。
